ELEVN BOTTOM BRACKET EURO 68-73MM

Product Overview

The Elevn Euro Bottom Bracket is a sealed cartridge bearing bottom bracket designed for BMX frames with Euro (European) threaded bottom bracket shells measuring 68-73mm wide. Built with sealed bearings and a 34.5mm outer diameter, this bottom bracket supports 24mm diameter spindles found on modern three-piece BMX cranks.

Key Features

• Sealed cartridge bearings – Sealed bearing design protects against dirt and moisture, reducing maintenance and extending bearing life
• Euro threading – European thread standard fits frames with Euro bottom bracket shells (M36 x 24tpi threading)
• 68-73mm shell compatibility – Fits frames with bottom bracket shell widths ranging from 68mm to 73mm
• 24mm spindle support – Internal bearing bore accommodates 24mm diameter crank spindles, the modern standard for most BMX three-piece cranks
• 34.5mm outer diameter – Bearing cartridge outer diameter fits standard Euro bottom bracket shell inner diameter

Technical Specifications

• Bottom bracket type: Euro (European threaded)
• Threading: M36 x 24tpi (Euro standard)
• Shell width compatibility: 68-73mm
• Spindle diameter: 24mm
• Bearing outer diameter: 34.5mm
• Bearing type: Sealed cartridge bearings
• Weight: 107g

Compatibility and Ideal Use Cases

This bottom bracket fits BMX frames with Euro threaded bottom bracket shells measuring 68-73mm wide—verify your frame uses Euro threading, not American (19mm), Mid, or Spanish bottom bracket standards before ordering. The 24mm spindle bore works with modern three-piece cranks that use 24mm spindles (most current BMX cranks). Not compatible with 19mm, 22mm, or other spindle diameters—verify your crank's spindle diameter before purchasing.

Best suited for riders building or maintaining BMX bikes with Euro bottom bracket frames and 24mm spindle cranks. The sealed cartridge design eliminates the need for regular bearing cleaning and regreasing, making maintenance easier compared to loose ball or unsealed bearing systems. The 68-73mm shell width range accommodates different frame designs—some frames have narrower 68mm shells while others use wider 73mm shells for increased bearing stance and improved stiffness. Ideal for racing, park, street, or dirt riding where reliable bearing performance and low maintenance matter. Install with proper torque to ensure the cups thread fully into the frame without cross-threading or over-tightening. Apply anti-seize compound to threads during installation to prevent seizing and allow future removal. Check for smooth spindle rotation after installation—binding or rough rotation indicates improper installation or bearing damage.